Analyzer solves spiking readingsProblemChlorine and water were not mixing thoroughly at a drinking water plant in South Carolina, producing incomplete conversions to monochloramine that affected residual life and disinfection byproduct formation. Monitoring revealed the issue.SolutionThe facility installed a CLT10 sc total chlorine reagentless amperometric analyzer from Hach next to a diethyl phenylene diamine (DPD) colorimetric instrument. Data from the amperometric unit showed trending of the colorimetric analyzer and shed light on multiple spikes not visible in other tests. Continuous data from the instrument showed that instability of pH and chlorine concentration values were causing the spikes.The team knew pH instability
